Solar-Powered Machines Fit Inside Wine Glasses [Pics]

Polish artist Szymon Klimek has created a series of miniature solar-powered machines that are small enough to fit inside a wine glass. These intricate machines rotate and spin inside the glasses, and the tiny but impressive feats of engineering make you wonder how small solar-powered engines could be. Check out a mini machine in action in the video below and click through to see pictures of Klimek’s designs: